Close ob open stove



H. SEITZ.

Grate.

UNITED srxrssgranr OFFICE.

HENRI7 SEITZ, OF ST. MARYS, VIRGINIA.

CLOSE OR OPEN STOVE.

Specification of Letters Patent No. 17,235, dated May 5, 1857.

To all whom it may concern Be it known that I, HENRY Snrrz, of St.v Marys, in the county of Pleasants and State of Virginia, have inventedcertain new and useful Improvements in Open Stoves; and` I do hereby declare that the following is a full, clear, and exact description of the same, reference beingihad to the accompanying drawings, making part of this specifica tion, in which,

Figure l, is a transverse vertical section of my improvement; `(as), Fig. 2 showing the plane of section. Fig. 2 is a front view of the same. Fig. 3 is a horizontal section of the same; (y) (y), Fig. 2, showing the plane of section. i

Similar letters of reference indicate corresponding parts in the several figures.

. To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A, represents a rectangular cast iron box or chamber which forms the body of the sto-ve; said box or chamber having a grate B, fitted into its lower part. The grate is formed ofV horizontal bars which project a short distance in front of the box or chamber. The sides of the box or chamber, at its front end, are provided with flanches or plates (ZJ) and the top part is provided with a shelf (o) the plates and shelf (c) forming a mantel. The box and plates and shelf may all be cast in one piece. The front of the box A, just below the shelf (o) perforated as shown at (d), and the lower parts of the plates are also perforated as shown at (e) see more particularly Fig. 2.

C, represents the aslrbox, which is at the lower part of the box A, and underneath the grate B. This ash-box projects outward a certain distance in front of the grate, and a cast or sheet iron box D is tted within the box C; and within said box C and over the box D, a box E, having a perforated 'or grate bottom, is fitted. The upper part of the ash-box that extends beyond the front of the grate is covered by a register F, which may be formed of a series of stationary bars (f) and a series of movable bars (g) placed over them. The box E is somewhat shorter than the box D, so that a certain degree of play is allowed it within the box C; and a rod or bar (la.) is attached and down in recesses in the plates to the front endV of the` box E; said rod or bar (it) passing through the front of the box C, and serving as a handle.

At each side of the grate B, .a bar F1, is placed. These bars are allowed to slide up To the bars F1, grate-bars (i) are attached. The said bars (i) are parallel with the bars (a) of the grate, but extend farther outward so that they may work up and down over `the bars (a). To the inner sides of the bars F1, horizontal projecting bars are attached, one Vto each, and tlrese bars are pivo-ted to counterpoises Gr, which rest or work on fulcrum pins or bea ings (la).

The bottom of the grate B isv formed of stationary `bars (Z), having movable or sliding bars (m) placed underneath them, and connected by a bar (n.) to anv arm (.0), on a shaft or rod H, by turning which the bottom of the grate may be closed perfectly tight, or left open as usual.

W'ithin the box or chamber A, a vertical chamber I placed. The width ofY this chamber is not equal to that of the box A, as a space or passage J, J, isV allowed at each side of the chamber I; see Fig. 8. The lower ends of thepassages J, J, communicate with the external air openings (79), made through the sides of the box or chamber A, at the lower ends of the passages J J. i

By referring to Fig. l, it will be seen that the front part of the chamber I forms the back of the grate B. Just `above the grate B, and in the front plate of the chamber A, a register or damper K is placed. This damper `or register may be formed in any proper way; a sliding damper or register would probably be preferable. This damper or register is operated by attaching an arm (01) to a1 bar (nl) connected with the register; the lower end of the arm (01) being secured to a shaft or rod L, which passes through one of the plates (b) as seen in Fig. 3, and dotted lines in Fig. 2. The back of the chamber I, is placed some distance fromv the back of the box or chamber A, so as to allow a passage (s) which forms a commu nication between the ash-box C and the flue or chimney M.

Within the chamber or bo'x A, and above the grate B, a plate N is placed. The lower end of this plate has a pivot or journal (t) or chamber A. rlhe upper end of the plate N has a similar plate O attached to it by hinges or joints (v) and the upper end of the plate N extends upward as far as the throat (w) of the flue, or the space between the upper end of the chamber I and a projecting ledge P at the inner side of the box A; see Fig, l.` The plate O is provided with a tenon or guide pin (u) at each end, which tenons fit in oblong slots (u1) in the sides of the box A. To the lower end of the plate N, a plate'Q is attached by hingesor joints (ax) and a sliding plate R is attached to the under side of the plate Q; the plate R having cleats (bx) upon it, which cleats tit or work in grooves (GX) in the under side of the plate R; as seen in Fig. 1. The plates N, O, Q, R, extend the whole width'of the box A.

By moving the upper end of the plate O backward, and likewise moving backward the lower plate Q, as shown in Fig. 1, in black, the draft will pass up from the grate B, in the directionindicated by arrows l; but if the plates O and Q be moved outward, and the sliding plate R be shoved downward, as shown in red, the draft will pass up inside the plates as indicated by the arrows 2, and by moving the bars yso that the spaces between the bars (a) of the grate are covered by them, a perfectly tight or' close grate is obtained; and when the plates O, N, Q, R, are adjusted as shown in red, a perfectly tight stove is obtained.

The cold air from the room or apartment passes through the apertures or openings (e) in the lower partsof the plates (ZJ), and thence through the openings (p) into the lower ends of the passages J, J; and in passing up said passages the air becomes heated and escapes through the openings (l, underneath the shelf, into the apartment or-room; see arrows 4. By opening the damper or register K, warm air will be admitted on the upper surface of the fire and all smoke and inflammable gases will be consumed.

The bars being balanced or counterpoised may be readily adjusted by the use of an ordinary poker; and the plates O, N, Q may also be adjusted by the same implement. Then the fire is completely inclosed by the bar (i) 'and plates, and the register F is also closed, the ashes in the box E may be sifted by Ymoving' the box E back and forth; and all dust will pass up the passage (s) into the flue or chimney M, as shown by arrows 3; the dust being eifectually prevented from entering the apartment.

The box or chalnber A, is inserted in the wall or chimney directly underneath the flue M; the front of the mantel being flush with the face or outer surface of the chimney or wall, and a space X is allowed between the sides Yof the box A and the masonry, as shown in Fig. 3. V

By the above improvement, the advantages of both the open grate and the close stove are obtained, and the objections to both are avoided. No dust can escape into the roomone of the objections to open grates; and the greater portion of the hea-t is not allowed to escape as it usually does in common grates. At the same time my improvement does not occupy any space in a room; it being fitted in the chimney. A strong draft may be obtained at any time by merely inclosing the Orate by adjusting the bars (i) and plates N, Q, R, as described.

Having thus described my invention, what vI claim'as new, and desire to secure by Letters-Patent, is:

I claim the arrangement, in a grate, of the plates O, N, Q, R, supplementary gratebars (i) dust flue (s), air-heating chambers X, X, I, and passages J, J, when the whole gre disposed as shown for the purpose set Orth.

HENRY SEITZ,

lVitnesses 1 HENRY C. CREEL, I. D. MYERS. 

